Flowise through 2.2.4 contains an unauthenticated arbitrary file upload vulnerability in the /api/v1/attachments endpoint when storageType is set to local. Attackers can exploit path traversal in the chatId and chatflowId parameters to upload malicious files to arbitrary directories, potentially enabling remote code execution and server compromise.
CVE-2025-71333
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-26. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(high)
- EPSS
- 45.6%
- KEV
- Not listed
Published
June 25, 2026
Last Modified
July 1, 2026
Advisory Details (2)
Auto-updated Jul 11, 2026Flowise Pre-auth Arbitrary File Upload · Advisory · FlowiseAI/Flowise · GitHub
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-h42x-xx2q-6v6gFlowise - Arbitrary File Upload via Unauthenticated /api/v1/attachments Endpoint | Advisories | VulnCheck
https://www.vulncheck.com/advisories/flowise-arbitrary-file-upload-via-unauthenticated-api-v1-attachments-endpointVendor Advisories for CVE-2025-71333(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| flowise | — | — | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 18× in last 7d / 158× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 158 total refreshes for this CVE.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-73
- CVE-2022-24900EG 9.9EPSS 94%CRITICAL
- CVE-2020-37080EG 9.8CRITICAL
- CVE-2023-4634EG 9.8EPSS 100%CRITICAL
- CVE-2022-39952EG 9.8EPSS 100%CRITICAL
- CVE-2014-125059NVD 5.0EG 9.8MEDIUM
- CVE-2014-125044NVD 6.3EG 9.8MEDIUM
- CVE-2022-45213NVD 5.3EG 9.8MEDIUM
- CVE-2021-38477EG 9.8CRITICAL
- CVE-2020-1631NVD 8.8EG 9.8 KEVEPSS 91%HIGH
- CVE-2020-9752EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2025-71333?
When was CVE-2025-71333 disclosed?
Is CVE-2025-71333 actively exploited?
What is the CVSS score of CVE-2025-71333?
How do I remediate CVE-2025-71333?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-71333
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